Methods for use of sex sorted semen to improve genetic management in swine
First Claim
1. A method of increasing genetic merit of swine comprising the steps of:
- providing a population of swine;
establishing a subpopulation of males and females from the population of swine available for breeding and parenting progeny;
establishing female subgroups in the subpopulation, or male subgroups in the subpopulation, wherein the female subgroups are established based on genetic merit or parity and the male subgroups are established based on genetic merit or age, and each female subgroup comprises one or more females and each male subgroup comprises one or more males;
establishing a mating subtype, wherein the mating subtype comprises i) a female subgroup and one or more males from the subpopulation or ii) a male subgroup and one or more females from the subpopulation;
determining a percentage of male progeny for the mating subtype, or a percentage of female progeny for the mating subtype, that would result in an increase in genetic merit in the next generation relative to a control, wherein in the control, approximately 50% of progeny are male; and
inseminating one or more females in the mating subtype with a sex sorted sperm cell sample from a male in the mating subtype to achieve the percentage of progeny that are male, or the percentage of progeny that are female, determined to increase genetic merit relative to the control.
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Abstract
The invention relates to methods of increasing genetic merit of swine by establishing a plurality of mating subtypes for a line of swine, and determining a percentage of progeny that are male for each of the mating subtypes, or a percentage of progeny that are female for each of the mating subtypes, that would result, relative to a control, in an increase in genetic merit in the line; the invention further relates to sorting a sperm cell sample from a male swine in one of the mating subtypes into one or more subpopulations of sperm cells, wherein a majority of sperm cells in a subpopulation of sperm cells bear X chromosomes or Y chromosomes, and inseminating one or more female swine in the one of the mating subtypes with the subpopulation of sperm cells to achieve the percentage of progeny that are male, or the percentage of progeny that are female, determined to increase genetic merit relative to the control.
46 Citations
12 Claims
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1. A method of increasing genetic merit of swine comprising the steps of:
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providing a population of swine; establishing a subpopulation of males and females from the population of swine available for breeding and parenting progeny; establishing female subgroups in the subpopulation, or male subgroups in the subpopulation, wherein the female subgroups are established based on genetic merit or parity and the male subgroups are established based on genetic merit or age, and each female subgroup comprises one or more females and each male subgroup comprises one or more males; establishing a mating subtype, wherein the mating subtype comprises i) a female subgroup and one or more males from the subpopulation or ii) a male subgroup and one or more females from the subpopulation; determining a percentage of male progeny for the mating subtype, or a percentage of female progeny for the mating subtype, that would result in an increase in genetic merit in the next generation relative to a control, wherein in the control, approximately 50% of progeny are male; and inseminating one or more females in the mating subtype with a sex sorted sperm cell sample from a male in the mating subtype to achieve the percentage of progeny that are male, or the percentage of progeny that are female, determined to increase genetic merit relative to the control. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification